Degradation of ferulic acid by Arthrobacter sp.

Abstract:

[Background] Ferulic acid and its analogues, accumulated in soil, are harmful to crop growth. It is an effective solution to decompose these substances by microorganisms. [Objective] A strain that could degrade ferulic acid efficiently was isolated from the soil. The ferulic acid degradation efficiency of the strain was evaluated for further application of the strain. [Methods] The strain was screened by the special culture containing high concentration of ferulic acid. The partial 16S rRNA gene sequences were used to identify the strain. The ferulic acid degradation characters of the strain were detected by HPLC. [Results] The strain was Arthrobacter sp. and named J6. High degradation efficiency was obtained at ≤1.20% saline stress (i.e., 12 g/L NaCl), pH 5.0?9.0, temperature at 20?40 °C, with/without glucose and with/without yeast. [Conclusion] strain J6 had good application potential in bioremediation of ferulic acid.

Key words:ferulic acid, Arthrobacter sp., biodegradation